00282    a2200097   4500082001500000100002500015245005200040260004700092300001700139650002800156  a519.5bWIC  aWickramasinghe, E.S.  aStatistical techniques for managerial decisions  aKurunegalabE.S.Wickramasinghec1997g1997  a157p.c21cm.  aSTATISTICAL MATHEMATICS